TY - JOUR AU - V. P. Glushko TI - Smoothness of solutions of degenerate differential equations in Banach space JO - Doklady Akademii Nauk PY - 1971 SP - 20 EP - 22 VL - 198 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1971_198_1_a3/ LA - ru ID - DAN_1971_198_1_a3 ER -